Revellers planning to celebrate the new decade will be happy to know most of the main centres look set to ring in 2020 with fine, mild weather, according to the WeatherWatch 10-day forecast.
Though some rain is possible, and a bit of wind in the south, the rest of the country will be mild and sunny.
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Auckland is forecast to enjoy a high of 24C on New Year's Eve, and 23 on New Year's Day. Both days will be mostly sunny and there will be a mild overnight low of 15C.
Christchurch takes the top temperature on New Year's Day, jumping from 21C and mostly sunny, but with a small chance of rain on New Year's Eve, to a whopping 34C on Wednesday because of a south-west change.